Forecast error is found by subtracting the forecast from the actual demand for a given period.

Question

BlackTom AI · Accepted Answer

The statement to evaluate is: 'Forecast error is found by subtracting the forecast from the actual demand for a given period.'
Option 1: True. If you interpret 'subtracting the forecast from the actual' literally as Actual minus Forecast, then this yields a number that represents how far off the forecast was, with sign indicating whether actual exceeded the forecast (positive) or fell short (negative). However, many forecasting texts and calculators define forecast error as Forecast minus Actual, not Actual minus Forecast, so this option can be considered incorrect depending on the convention being used.
Option 2: False. The conventional definition of forecast error is typically Forecast minus Actual (Error = Forecast − Actual). This means the error is found by subtracting the actual demand from the forecast, not the other way around. Using Forecast − Actual aligns with common error metrics like Mean Signed Error and is the basis for several performance measures where the sign conveys bias (whether forecasts tend to overpredict or underpredict).
Additional nuance: In some contexts, people use Actual − Forecast and then report the magnitude as the absolute error, MAD, or RMSE without regard to sign. When a problem explicitly states a different convention, the interpretation may differ. In this item, the given answer indicates that the statement is not aligned with the standard convention (Forecast − Actual), hence the classification as False.
In summary, the core distinction is the order of subtraction defining the error value and its sign. The conventional approach uses Forecast minus Actual, which makes the statement as written (Actual minus Forecast) not consistent with that common convention.

Forecast error is found by subtracting the forecast from the actual demand for a given period. 判断题

类似问题

Which strategy is most effective for handling the random component (or “noise”) in a forecast?

Question at position 1 The forecast error measures the difference between the forecast and the estimate.The forecast error measures the difference between the forecast and the estimate.TrueFalse

Question at position 8 An excess of growth hormone (GH) before puberty can result in the development ofgigantism.Graves' disease.acromegaly.pituitary dwarfism.Clear my selection

Question at position 6 The most abundant supporting cells in the central nervous system are called Question Blank 1 of 1[input].

Question at position 5 In the eye, the lens functions tofocus light on the retina at the back of the eye.protect the surface of the eye.increase vision in low-light conditions.move the eye side to side.Clear my selection

Question at position 4 Olfactory (odor) receptors are chemoreceptors. TrueFalse

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.00, which of the following is TRUE?

Identify the missing particle in the following nuclear equation: 92 236 𝑈 → 38 90 𝑆 𝑟 + ? + 2 0 1 𝑛 + 4 0 0 𝑔

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单